line count use bufio

gistfile1.go

package main

import (
	"fmt"
	"os"
	"bufio"
)

func main() {
	lCount := 0
	fb, _ := os.Open(os.Args[1])
	buf := bufio.NewReader(fb)

	for {
		_, _, er := buf.ReadLine()
		if er != nil {
			break
		} else {
			lCount++
		}
	}
	fmt.Println(lCount)
}